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are posted - Atmospheric and Oceanic Sciences
are posted - Atmospheric and Oceanic Sciences

... these differences explained by the composition of their lavas? Shield volcanoes are gently sloped domes typically composed of basaltic volcanic rock. The lava that forms these rocks is of low viscosity, so it flows easily. Stratovolcanoes or composite volcanoes are large conic volcanoes. They are th ...
01 - Katie O`Ryan
01 - Katie O`Ryan

... 1.Which kind of rock is formed from weathering, erosion, deposition, compaction, and cementation (WEDCC)? a. metamorphic b. metasedimentary c. sedimentary d. igneous ORIGINS OF SEDIMENTARY ROCK ...
Earth Science Chapter 20 Name Worksheet 1 Block Match the
Earth Science Chapter 20 Name Worksheet 1 Block Match the

... E. Cycle of processes that form all mountain ranges, resulting in broad mountain belts, most associated with plate boundaries F. Mountains that form when large pieces of crust are tilted, uplifted, or dropped downward between large normal faults G. Mountains that form when large regions of Earth are ...
Metamorphic Petrology Review
Metamorphic Petrology Review

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6 Turning Sediment into Sedimentary Rock

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Petrology Lecture 9 Review

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MOUNTAIN BUILDING AND EVOLUTION OF CONTINENTS

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msess2 - North Bergen School District

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Plate Tectonics and Continental Drift

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geologic history 2

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... Cambrian to Early Ordovician time. Late Neoproterozoic rifting eventually led to the opening of the Iapetus Ocean. New, stable continental margins developed (Figure 4B). During Cambrian to Early Ordovician time, a marine incursion transformed much of eastern North America into shallow-water continen ...
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ES Ch 3 Quiz Review `13

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Folding, Faulting and the Brittle/Ductile Transition Zone
Folding, Faulting and the Brittle/Ductile Transition Zone

... After they have supplied examples and characteristics regarding depth and heat, label the ductile column with Fold, brittle column with Fault, and leave the third column as Brittle/Ductile. Teacher then goes over the defining characteristics of faults and folds, using the information the students su ...
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Earth`s interior volc eq4

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strontium-87

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Algoman orogeny



The Algoman orogeny, known as the Kenoran orogeny in Canada, was an episode of mountain-building (orogeny) during the Late Archean Eon that involved repeated episodes of continental collisions, compressions and subductions. The Superior province and the Minnesota River Valley terrane collided about 2,700 to 2,500 million years ago. The collision folded the Earth's crust and produced enough heat and pressure to metamorphose the rock. Blocks were added to the Superior province along a 1,200 km (750 mi) boundary that stretches from present-day eastern South Dakota into the Lake Huron area. The Algoman orogeny brought the Archaen Eon to a close, about 2,500 million years ago; it lasted less than 100 million years and marks a major change in the development of the earth’s crust.The Canadian shield contains belts of metavolcanic and metasedimentary rocks formed by the action of metamorphism on volcanic and sedimentary rock. The areas between individual belts consist of granites or granitic gneisses that form fault zones. These two types of belts can be seen in the Wabigoon, Quetico and Wawa subprovinces; the Wabigoon and Wawa are of volcanic origin and the Quetico is of sedimentary origin. These three subprovinces lie linearly in southwestern- to northeastern-oriented belts about 140 km (90 mi) wide on the southern portion of the Superior Province.The Slave province and portions of the Nain province were also affected. Between about 2,000 and 1,700 million years ago these combined with the Sask and Wyoming cratons to form the first supercontinent, the Kenorland supercontinent.
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